if_nameindex man page on OSF1

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if_nameindex(3)						       if_nameindex(3)

NAME
       if_nameindex - Return an array of all interface names and indexes

SYNOPSIS
       #include <net/if.h>

       struct if_nameindex *if_nameindex(
	       void );

LIBRARY
       Standard C Library (libc)

DESCRIPTION
       The  if_nameindex()  function dynamically allocates memory for an array
       of if_nameindex structures, one structure for each interface. A	strucā€
       ture  with a zero (0) if_index value and a NULL if_name value indicates
       the end of the array.

       You must define the following if_nameindex structure prior to a call to
       if_nameindex():

       struct if_nameindex {
	   unsigned int	  if_index;
	   char		  *if_name;
	};

       To  free	 memory allocated by this function, use the if_freenameindex()
       function.

RETURN VALUES
       Upon successful	conversion,  the  if_nameindex()  function  returns  a
       pointer to the first structure in the array of if_nameindex structures.

SEE ALSO
       Functions: if_freenameindex(3), if_indextoname(3), if_nametoindex(3).

							       if_nameindex(3)
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